This plugin hasnt been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

The plugin did work, you can upload and insert SVG easily. Sadly it made all other media disappear from the insertion library. They are still available on the main "Media Library" but you can not insert them from the "insert media" tab.

I was manually modifying my function.php files but that was not working quite right. This plugin allowed me to archive the same without much work. My only suggestion will me to improve it to help uploading svgz files.

3.0

Added additional styling to allow for SVG files to show for Featured Images.

Reduced overall code footprint and complexity.

Added code documentation.

Resolved several serverside issues you may have been encountering having to do with security related stuff.

2.3.1

Added inline styling to the administration area so SVG attachments will show up in list/grid views.

Props to shield-9 (Daisuke Takahashi) for the code.

2.2.1

Added a security library to scan all uploaded SVG files. It has a list of “expected” elements and attributes, if the file contains thing it does not expect, it removes them. This will include things like Javascript.

The security cannot be perfect and it is recommended to only provide upload privileges to trusted users.

Props to thedwards for bringing this to my attention.

2.0

I broke everything. I’m sorry, but it had to be done.

Basically how I had approached the problem before was wrong. It is now being done properly using the correct mime/type.

Shortcodes are no longer needed, you can now use SVG files as you would any other image.

Previews now show up in the media area for SVG files.

IMPORTANT: Anyone using the version prior to 2.0 were using shortcodes to display SVG files. You will have to go back and replace those shortcodes with actual image tags. If you’re not familiar with HTML, you can just delete the shortcode out of the page/post and then insert the SVG file as you would any other image.

Thanks to the guys over at mozilla.org for kicking me in the butt to actually fix this thing: https://bugzilla.mozilla.org/show_bug.cgi?id=721830

1.2

One less required parameter and a graceful fail over to a valid implementation type. Props @Phil

1.1

Fixing a typo. This typo caused ONLY SVG files to be allowed to upload via the media uploader.